Car-roof.



C. C. MURPHY.

CAR ROOF.

APPLICATION FILED OCT. l. 1914.

Patented Apr. 10, 1917.

3 SHEETS-SHEET l.

AWV Nw undunr La a..

C. C. MURPHY.

CAR ROOF.

APPLICATION FILED OCT. l. 1914.

1,221,89. Patena r. 10, 1917.

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m l u l n 1 wir C. C. MURPHY.

CAR ROOF.

APPLICATION mio ocT.|,1914.

Pantd Apr. 10,1917.

3 SHEETS-:SHEET 3.

UNrrEn sfrafrns Parana ortica.

CLINTON C. MURPHY, OF CHICAGO, ILLINOIS, ASSIGNOR TO P. H. MURPHY COMPANY, OF PARNASSUS, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA,

CAR-ROOF.

Specification of Letters Patent.

To all whom it may concern:

Be it known that I, CLiN'roN C. MUnrHY, a citizen of the United States, and a resident of` the city of Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Carloofs, of which the following is a speeiliczv tion.

This invention relates to metal car roofs, composed of non-rigidly connected roof sheets. and has to do particularly with the fastening means for loosely securing the roof to the substructure.

Loose jointed roofs, as heretofore constructed, can adapt themselves readily to the changes in the relative positions of the several parts of the substructure due to the weaving. rocking, twisting, bowing and sagging of the car frame under severe usage in service but in the course of time the roof sheets may become shifted out of place, causing the joints to separate or to leak, and not infrequently the roof sheets tear loose from the fastenings.

. The object of vthis invention is a metal car roof having all the advantages of a loose jointed roof and free from the foregoing disadvantages. Further objects of the invention appear in coimection with the following description of the embodiment of the invention shown in the accompanying drawings,

In the drawings, in which like reference characters designate like parts in the several views, Figui-e1, is a plan view of a portion of a car showing the roof partly broken away to uncover the parts beneath;

liig. 2 is a cross-section through the same on the line Q2` in Fig. 1, drawnto a slightly larger scale; y

Fig. 3' is a side view of the saine, drawn to the same scaleals Fig. 2;

Fig. -l is a large scale cross-section of th ridge consti-mation, on the line 414-4: in Fig. 1;

Fig. 5 is a large scale 4cross-section of the eaves construction, onthe line 5-5 in Fig. 1; Y

Fig. 6 is a large scale cross-section of the construction of 'the side seam or joint be- Patented Apr. 10, 191'?.

serial No. 864,372.

tween adjacent roof sheets on the saine side j of the eaves construction shown in Fig. 10.

For purposes of illustration, the invention is shown in the drawings applied to a car having wood side .plates 11 and end plates 12, and wood side sheathingwl and fascia boards 1-1. The roof substructure consists of carlines 15 and a ridge pole 16 supported thereby, and sheathing boards 17 extending from ridge to eavesand supported at their ends on the ridge poleand the side plates. The invention may be applied to other forms of car construction than that Shown in the drawings, and is applicable to steel fra-me cars as well as to cars with frames made partly or wholly of wood.

As shown in the drawings, the roof sheathing boards are rabbeted to form a shallow groove running along the top of the car adjacent to the eaves on each side, but these grooves may be omitted. Flashing strips 18, having their outer margins bent down over the eaves and secured to the side of the car, are arranged lengthwise of the car in the shallow grooves. The inner margin of each flashing strip 18 is folded back over the main portion, forming a Hat hook-shape fiange 19. In the construction shown in Figs. 1, 2, 3, 5 and 9, the hook flanges 19 are provided at intervals corre spending to the spacing of the roof sheets ywith upward projecting circular bosses 20.

.ends straddling the ridge pole and hooked vtogether to form a ridge seam or ioint. The

' bosses 20 of the flashing strip within thev 'lar'bos's 24,-conforming to the shapeof the bosses 20in the flashing strips. The diameter of the bosses 24 is slightly greater than that of the bosses 20, whereby when the flanges 23 of the roof sheets are hooked into the flanges 19 of the flashing strips with the bosses 24 of the roof sheets, there will be a slight space between the side walls of each pair of nested bosses.

In the construction shown in Figs. 1 to 6, inclusive, the side margins of the roof sheets are flanged up side by side with a slight space between them, and bent over to one side and down nearly to the body of one of the roof sheets. The extremity of. the upper flange 25 is turned under the extremity of the lower flange 25a thereby preventing the flanges from separating vertically, as shown --in Fig. 6. In assembling the sheets upon the car the side flanges 25, 25, may b e slipped lengthwise or telescoped one within the other, and the ridge flanges lapped together i by dropping one inverted U-shaped flange 22 on vthe other after the sheets are in position. The bosses 20 on thel flashing strips may be nested together without affecting the side and ridge joints by lifting the eaves ends of the roof' sheets, the flanges 19 and 23 being sufficiently flexible to enable this to bedone.

rllhe eaves ends of the side seams are covered by hood clips 2G which are bolted to the side of' the car. Angle clips :27 bear upon the eaves ends of the roof sheets at theA bosses 24 and hold them in engagement with the flashing strips. The hood caps and angle strips are provided with lugs 23 on their inner sides below the eaves angle. These lugs bear upon the flashing strip and space the horizontal under 'faces of the hood caps and angle strips above the flashing,r strip and roof" sheets to prevent binding the latter, as shown in Fig. 5. The flashingr strip 18 and underturned eaves end flanges 23 may be so propm'tioned and arranged as to have sufficient stillness to retain the bosses 20 on the-flashing'strip in engagement with the bosses 24 on the roof sheets, and the clips 27 may be omitted, as shown in Fig. 9.

The ridge corners of' the roof sheets are secured by corner caps 29 which embrace the side and ridge seams and have base flanges 3() which rest on the roof sheets near their corners. Space is left within the corner caps around the side and ridge seams in order to permit movement of the corners of' the sheets upon the substructure. The corner caps are heldin place. by bolts 3l which pass through their centers and are secured to the ridge pole.A The bolts 31 also secure the running board saddles 32, to which the running boards 33 are nailed or otherwise securely fastened.

In the construction shown in Fig. 7, the

' roof sheets have inturned inverted Usha )ed of the roof between the marginal flanges 3-l of adjacent sheets, with a narrow space between each flange and the adjacent mullion.

Seam covers 36 of inverted channel shape.

are supported on the mullions with their side walls 37 inclosing the side flanges 34 of ad'a-cent roof sheets. The extremity of each si e wall 37 of the'seam covers is doubled under and bent up into the space within the U-shaped flange 34 adjacent thereto; the intermediate part of the doubled-under portion 38 being in contact with the f'ree edge of the U-shaped flange 34 and the free edge of the doubled-under portion 38 being in contact with the inner ,side 0f the outer wall of the U-Shaped flange 34. This construction provides a flexible water-tight joint between adjacent roof sheets. The roof sheet flanges hold the seam covers in place upon the roof` while permitting theseam covers to be readily removed and slipped in place endwise.

The eaves ends of the seam covers 36 may be turned down and nailed or otherwise secured to the side of the car, or they may be covered and held in place by eaves hood clips similar to the hood clips 26.

In Fig. 8, a ridge seam construction is shown which permits of sidewise and endwise movement of' the roof sheets, but which limits excessive movement crosswise'of the car. The roof sheets have their ridge ends doubled over, and the outer part of each doubled portion is bent up into a double walled marginal flange 39. The inner extremity 4() of the doubled-over portion of the ridge end of the sheet lies above and is spaced slightly away from the body portion of the sheet inside its margin. Ridge caps 41 of' inverted channel-shape are arranged lengthwise of the car at the ridge straddling the double-walled flanges 39 of each pair of oppositely arranged roof sheets. The side walls #l2 of the ridge caps are provided with outturned flanges 43 along their bottoms, the extremities of the flanges 43 being doubled under and spaced below the intermediate portions thereof to form pockets or channels within which the extremities 40 of the flanges 39 of the roof sheets engage loosely. The width of the extremities 4() of the roof sheet flanges 39 is about the same as that of the pockets formed by the flanges 43 along the lower edges of the side. walls of the ridge caps. and is mnsiderably less than the width of the. space between the side walls llt) of the ridge caps, thus permitting the roof vsheets to move toward the ridge sufliciently to permit the disengagement of the flanges 40 and 43 in order to permit the ridge caps to be removed and replaced. The bosses at the eaves ends of' the roof sheets normally prevent sufficient movement of the roof sheets toward the ridge to disengage the lateral flanges J(Ofrom the pockets in the side walls of the seam caps. The disengagement of the eaves ends of the roof sheets from the flashing strips permits the roof sheets to be moved toward the ridge and thus permits disengagement of the ridge caps. l I

In the construction shown in Figs. 10 and l1, the eaves ends ot' the roof sheets and the hook-shape flanges of the flashing strips are not provided with bosses which fit into each other. but instead theflashing strips are provided with bosses 44 adjacent to the ends of the roof sheets near their middle points. The bosses H prevent endwise movement of the root' sheets in the direction toward the eaves, and thereby retain the hook-shape flanges :23 of' the roof' sheets in engagement with. thehook-shape flange 19 of the flashing strip. rl`he bosses 44 are convex on the side adjacent to the ends of' the roofl sheets, so that each roofl sheet has a pivotal bearing against the adjacent boss and the roof' sheets can swing about the bosses as centers in response to the weaving ofl the car 'f1-aille.

lt is evident that modifications in the forms of' the several parts may be made, .and the invention is not restricted to theprecise forms shown in the drawings.

What l claim as my invention is as follows:-

1. A car root' comprising root' sheets eX- (ending from ridge fo eaves with the middle points ofl their eaves ends pivotally secured on top of' the car near the eaves said root' sheets being independently lnovable along the ridge` and connected by loose joints.

2. A car roof' comprising roof' sheets ar- 'ranged ero'sswise of the. car and secured to the car for pivotal movement about. their eaves ends said rootl sheets being movable lengthwiserv of the ear at .the ridge, and loosely joined at their side edges.

il. car'roof comprising root' sheets ex tending from ridge to eaves and having their side margins connected by slidable joints. said sheefs having a pivotal bearing on top of the ear near the middle points ot' their eaves ends` the ridge ends of said roof' sheets being provided with upstanding flanges, and ridge caps of inverted channel shapel straddling the ridge. flanges of' sheets on oppo site sides of' the ridge and spaced therefrom to permit movement. of lhe roof sheets lengthwise of the car and to limit erosswise movement thereof, said ridge caps permit-v ting mutual crosswisc movement of said sheets and restraining their independent crosswise movement.

4. A car roof comprising roof sheets extending from ri'tlge to eaves and having their side margins connected by seams providing for relative endwse movement and with their ends pivotally secured on top of the ear near the eaves, the ridge ends of said roof sheets being provid-ed`with upstanding inverted U-shape flanges, cover strips overv said flanges permitting sidewise movement thereof. said flanges and cover strips forming a floating ridge seam which responds to and mutually restrains the transverse Inovement 'of' the. roof sheets, and means for holding down said roof sheets at their eaves and ridge corners.

5. .Lear roof comprising roof Sheets eX- tending from ridge to eaves and having their side margins connected. by seams providing for relative endwise movement and with their ends secured on the car near the eaves against movement toward 'the eaves, the ridge ends of' said roof sheets being provided with upstanding inturned horizontal flanges, ridge caps having side margins with their lower edges turned in and hooked under said flanges for sidewise engagement and disengagement,and means for holding down said roof sheets and ridge caps.

(i. A root sheet having upstanding side and ridge flanges and a doubled under flange at the eaves end, and an upward projecting boss at the middle of the eaves and positioned over said doubled under flange.

T. A roof sheetI for a ear roof having means for pivotally securing the roof sheets at. the eaves, said roof' sheet having a double-walled upstanding flange along its ridge margin. the inner wall terminating in a lateral flange project-ing away from the outer wall and with its free edge overlying and spaced from thev body of the rootsheet whereby 'it is adapted to engage loosely with a ridge flashing strip.

S. In combination in a car roof, a roof sheet having a doubled under eaves flange and an upward projecting boss at the middle of' the eaves end, and an eaves flashing strip having a doubled over inner margin hooked info the end of' the root' sheet and provided with an upward projecting boss fitting within the boss on the root' sheet.

S). ln combination in a car roof. a root sheet .having a doubled under eaves flange andan upward brojecfing boss at the middle of the eaves end, and an eaves flashing strip having a doubled over inner margin hooked into the end of the roof sheet and provided with an upward projecting boss fitting within the boss on the roof sheet, andV a clip .eeured to the car at the eaves and overlying the roof sheet adjacent to said boss. Y

10. In 'combination in a car roof, a roof sheet having n doubled under eaves finnge and en upward projecting boss :it the iniddle of the caves end, und :1n 4eures; inshing strip having n doubled over inner margin hooked into the end of the roof sheet und provided with unf upward projecting boss fitting within the boss on the roof sheet, and a clip secured to the cur at the cuves and overlying lthe roof sheet adjacent to SuidI bos1s5 said 'clip `being spaced above said flashing away from the eaves and having a portion adapted to bea/,r upon said ashing near 4the eaves. D

11. In combination in a car roof, a roof sheet having :i circular boss :it its eaves end, 15 un eures inshng strip underlying said roof sheet at the eaves :1nd having :i circular boss fitting into the boss in said roof sheet, und :L clip secured to the, cnr outside the end of the roof sheet und having an linwardly ex 2 lending portion overlying the roof sheet :It the boss to hold it down upon the Hnshing.

Signed nt Chicago, Illinois7 this 28th dny of September, 1914.

CLINTON MURPHY.

Vjtnesses:

Josnlnmi; A. HAn'rNi-z'rr, ADA M. Biani.. 

